Big Joule Theif

[Lidmotor]

@Lidmotor
Thanks for explaining it.

Hmm, that would have to be a really fast charging cap, as it has to charge above 12V in about 1/100 of a second. So a 50V 0,1uF or lower cap.
I gotta try that. It is a smart suggestion indeed by "Rroge5", makes the circuit very efficient doing multiple jobs.

If you try that let us know if it works. I just ran the round 30 Watt bulb for 24hrs staight and it did what I wanted and charged up the 2nd battery without a cap so it may not be necessary to pulse the charge. I ran the test at 7 volts with a 50 milliamp draw. The light was on low light of course but still enough to read by at night. I may run a test at full brightness which runs at 11 volts and 150 to 200 milliamps. That is about the heat tollerance limit of the parts I'm using.

Lidmotor

[Xenomorph]

@Lidmotor
Thanks for explaining it.

When the bulb is not firing, pulse the charge battery

Hmm, that would have to be a really fast charging cap, as it has to charge above 12V in about 1/100 of a second. So a 50V 0,1uF or lower cap.
I gotta try that. It is a smart suggestion indeed by "Rroge5", makes the circuit very efficient doing multiple jobs.

[Lidmotor]

Charging with the 555/JT

@Lidmotor: 30 WATT lamp!!!
I wonder what happens if you put 2 or more horse-shoes closely in parallel together, so the charge and discharge parts are minimally close?
Maybe this can help you realize the battery switch for your boxed circuit:
Feedback To Source

I`d be interested to know how you finally handle the charging side.
Judging from your videos, you charge a cap first, put it under load with a night-light and dump it into the charging battery.
Would the charging battery still be connected with its negative the the source batteries plus?
I have just experimented with a bridge rectifier, but it did not work at all.

@Xenomorph--- I am trying to do the charging without using a cap pulser. I'm using a 1N4007 diode off the transistor going into the charge battery and then (-) of the charge battery back to the (+) of the source battery. This is Bedini SSG style charging. It is tricky. The voltage is not a problem but there has to be some amperage to push the energy into the battery and that robs energy from the flourescent. It's a "Thief" stealing from himself. I'm still working on it. You can always fill up a cap and dump the energy into the battery but that is another circuit and takes more energy. "Rroge5" over on Youtube suggested using the 555 circuit to regulate the charging. When the bulb is not firing, pulse the charge battery. It is worth looking into. As far as swapping the batteries is concerend, I will use a DPDT switch in the boxed version. Just flip the switch every 12 hours or so.

@Shlodo----I will have to try that 2N2222 blinker circuit. That might be a REALLY simple solution to turning on and off the JT.

Lidmotor

[slayer007]

@ Everyone

This project is really coming along thanks to iput from everyone.
It sure is an exciting circuit, and the numbers lidmotor is getting with the 555 timer pulse is great.. This circuit is much more efficient at lighting CFLs than the radiant oscillator.

Just wanted to thank everyone working on this... great effort guys.

I came across this circuit the other week and thought u might be able to do something similar to the 555 pulse idea. Its a simple led flasher using a 2n2222 as a negistor... NEGATIVE RESISTOR
The circuit is even simpler than the 555, it only uses a 2n2222, resistor and cap.
I build one and it draws less than 10mA to operate.. the circuit i found is only for 12V and im trying to modify it so it will work on lower voltages.

All you have to do to change the frequency is change the value if the Cap. Its not as versatile as the 555 but i thought it might be of some interest.

Simplest_LED_Flasher_Circuit
-shlodo

shlodo that does work very well to light a cfl.
It's allmost the samething Aromaz was doing with the ignition coil cfl.

I'm running it off 10v it draws around 170Ma.
But it will light a 13W cfl I'm using the toroid I have for the JT.

I didnt use the cap or the 1K resistor and the base of the 2222 I ran back to the cfl.
I'm allso using the 2222 to trigger a 3055 thats running the JT.

[shlodo]

I love this coil!

@Lidmotor: 30 WATT lamp!!!
I wonder what happens if you put 2 or more horse-shoes closely in parallel together, so the charge and discharge parts are minimally close?
Maybe this can help you realize the battery switch for your boxed circuit:
Feedback To Source

I`d be interested to know how you finally handle the charging side.
Judging from your videos, you charge a cap first, put it under load with a night-light and dump it into the charging battery.
Would the charging battery still be connected with its negative the the source batteries plus?
I have just experimented with a bridge rectifier, but it did not work at all.

@Xenomorph
Great link, Ive been trying to find a battery swapper circuit for ages.

About the charging, ive found the diode off the Collector to the positive of charge battery, negative back to plus on source. just like the Bedini. But i think with this circuit u'll have to cap pulse it by building up the charge first...


I finally mustered up the patience to wind Slayer007's Big Torroid coil. And it works great!! It can easlily light a big flouro with 3V, but not those CFL's for some reason.
I love the amount of light u can get with little current. Im gonna Replicate Lidmotors pulsed inverted circuit to steal some more Joules!

the coil is a bifillar 0.4mm 30 turns, the secondary is 0.3mm 530 turns. Ive found the charging on this coil is not as good as my last Joule THief with o.4mm 90 turns.


I think charging and amp draw is quite dependent on the coil and amount of turns. with the 90 turns coil I can charge a cap up to 230Volts, but with the 30 turn coil I only get about 60-70 Volts (without fluoro connected).
It will charge a big battery but not very well.
So i think u can wind coils more suited to charging, or more suited to lighting if u want

@Lidmotor - great work with the 30W globe! cant wait to use your circuit!

-shlodo

[Xenomorph]

@Lidmotor: 30 WATT lamp!!!
I wonder what happens if you put 2 or more horse-shoes closely in parallel together, so the charge and discharge parts are minimally close?
Maybe this can help you realize the battery switch for your boxed circuit:
Feedback To Source

I`d be interested to know how you finally handle the charging side.
Judging from your videos, you charge a cap first, put it under load with a night-light and dump it into the charging battery.
Would the charging battery still be connected with its negative the the source batteries plus?
I have just experimented with a bridge rectifier, but it did not work at all.

[Bodkins]

Antenna Electret

YouTube - Atenna Electret

YouTube - Why

I think this is whats needed and what tesla had around the spheres?
Make one round a bulb? like Lidmotor with the hot and cold thing
YouTube - A Thief with a super cap
Bx


this video is what Primary Phyics is all about!
YouTube - strange phenomena
I also have some videos explaining Primary phyics please check them out.

[Lidmotor]

Round 30 watt bulb on 555/JT

@Guruji------The circuit I am using is posted a page or so back except for Xenomorphs 555 timer modification. I keep changing little things almost on a daily basis -- fine tuning this thing. People are adding great ideas to the circuit. Today I changed the bulb to a round 30 watt and it worked the best of any so far. Slayer, Kubikop, Xenomorph, Shlodo, me and others came up with the ideas and pooled all the circuits all together. I think that it has been alot of fun for everyone.
Here is the video of the round bulb:

YouTube - Round Bulb On Pulsed Thief

Lidmotor

[shlodo]

Well done guys!

@ Everyone

This project is really coming along thanks to iput from everyone.
It sure is an exciting circuit, and the numbers lidmotor is getting with the 555 timer pulse is great.. This circuit is much more efficient at lighting CFLs than the radiant oscillator.

Just wanted to thank everyone working on this... great effort guys.

I came across this circuit the other week and thought u might be able to do something similar to the 555 pulse idea. Its a simple led flasher using a 2n2222 as a negistor... NEGATIVE RESISTOR
The circuit is even simpler than the 555, it only uses a 2n2222, resistor and cap.
I build one and it draws less than 10mA to operate.. the circuit i found is only for 12V and im trying to modify it so it will work on lower voltages.

All you have to do to change the frequency is change the value if the Cap. Its not as versatile as the 555 but i thought it might be of some interest.

Simplest_LED_Flasher_Circuit
-shlodo

[slayer007]

Ah right, thanks for pointing out that it was Iron, I missed that.

Was looking for a shortcut since winding a toroid is a lesson in patience (PITA).

Speaking of which, anyone have any advice for winding one ?

Mutten When I did mine I wound the wire on a long thin bolt.

Then you can just feed the bolt through the toriod.
Kinda like sewing.
Wind two strands of wire on the bolt for the joule thief.
Then do the same for the pickup coil but just one wire on the bolt.

Wind your JT part first then wind the pickup coil.
DO NOT go over the Jt winding with your pickup coil.
Keep them seperate do not let it overlap onto the JT windings.

[Guruji]

555timer charging

Hi Lidmotor can you please post a schematic for us all?
Thanks

[Mutten]

Mutten it will work better with a ferrite core.

I didn't have much luck with the iron cores with a secondary winding.

Here are the specs of the core Lidmotor and I are using.

OD: 2" (49mm) ID: 1.36" (34mm) Height: 0.64" (16mm)

Material: ASTM P7070 ( TSF7070 ) power ferrite

Ah right, thanks for pointing out that it was Iron, I missed that.

Was looking for a shortcut since winding a toroid is a lesson in patience (PITA).

Speaking of which, anyone have any advice for winding one ?

[slayer007]

Mutten it will work better with a ferrite core.

I didn't have much luck with the iron cores with a secondary winding.

Here are the specs of the core Lidmotor and I are using.

OD: 2" (49mm) ID: 1.36" (34mm) Height: 0.64" (16mm)

Material: ASTM P7070 ( TSF7070 ) power ferrite

[Mutten]

I was looking for a toroid core and found this one and was wondering what people think of it. Would it be a good start to a JT/555?

Already built a small JT but I can't get enough windings for a good tertiary winding.


829-0080-UNIVERSAL TOROID CORE-Electronic Surplus Inc.Offering obsolete IC's, discretes, motors, relays, switches, pots, and much, much more! Always looking for your excess inventory.

[Lidmotor]

CMOS 555 low power timer chip-----Works

@Xenomorph---- UPDATE. I just swapped out the 555CN to a low power CMOS TLC555 chip and it works better. The amp draw went down and the chip is handling this circuit just fine.

Lidmotor